<?php
error_reporting(0);
$server = "172.21.147.31";
$connectionInfo = array( "Database"=>"ss2g6", "UID"=>"ss2g6", "PWD"=>"group6", 'ReturnDatesAsStrings'=> true  );
$conn = sqlsrv_connect( $server, $connectionInfo );

if ($conn == false){
	 die( print_r( sqlsrv_errors(), true));
}

$params = array();
$options =  array( "Scrollable" => SQLSRV_CURSOR_KEYSET );

if(isset($_GET['update'])){
    $updateCompanyName = $_GET['companyName'];
    $sql = "SELECT * FROM PharmaceuticalCompany WHERE companyName = '$updateCompanyName'";
    $result = sqlsrv_query( $conn, $sql, $params, $options );
    $row = sqlsrv_fetch_array($result, SQLSRV_FETCH_ASSOC);

    $updateAddress = $row['address'];
    $updatePhoneNum = $row['phoneNum'];
}

if(isset($_POST['Update'])){
    $updateCompanyNameOld = $_POST['companyNameOld'];
    $updateCompanyName = $_POST['companyName'];
    $updateAddress = $_POST['address'];
    $updatePhoneNum = $_POST['phoneNum'];
    
	 if( $updateCompanyName == "" || $updateAddress == "" || $updatePhoneNum == ""){
		$validation_error_1 = true;
	}
	else {
		$validation_error_1 = false;
	}
	
	if(is_numeric($updatePhoneNum)){
		$numeric_1 = true;
	}
	else {
		$numeric_1 = false;
    }

    if($validation_error_1 == false && $numeric_1 == true){
    	$sql = "UPDATE PharmaceuticalCompany SET companyName = '$updateCompanyName', address = '$updateAddress', phoneNum = '$updatePhoneNum' WHERE companyName = '$updateCompanyNameOld'";
		$result = sqlsrv_query( $conn, $sql, $params, $options );
    	if ($result == false){
			$error_update = true;
		}
		else{
			$error_update = false;
		}
	
    	$confirm = "The Pharmaceutical Company information is updated.";
	}
	else {
		$confirm = "";
	}
}

if(isset($_POST['Insert'])) {
    $companyName = $_POST['companyName'];
    $address = $_POST['address'];
    $phoneNum = $_POST['phoneNum'];
	
	/* check empty fields */
	if($phoneNum == "" || $companyName == "" || $address == ""){
		$validation_error = true;
	}
	else {
		$validation_error = false;
	}
	
	/*check whether phoneNum is a numeric number */
	if(is_numeric($phoneNum)){
		$numeric = true;
	}
	else {
		$numeric = false;
	} 
	
    $sql = "INSERT INTO PharmaceuticalCompany VALUES ('$companyName', '$address', '$phoneNum')";
	if($validation_error == false && $numeric == true){
    $params = array();
    $options =  array( "Scrollable" => SQLSRV_CURSOR_KEYSET );
    $result = sqlsrv_query( $conn, $sql, $params, $options );
	if ($result == false){
		$error_insert = true;
	}
	else{
		$error_insert = false;
	}
	
    $confirm = "The Pharmaceutical Company's information is inserted.";
	}
	else {
		$confirm = "";
	}
}

if(isset($_GET['delete'])){
	$companyName = $_GET['companyName'];
	$sql = "DELETE FROM PharmaceuticalCompany WHERE companyName = '". $companyName . "'";
	$params = array();
    //$options =  array( "Scrollable" => SQLSRV_CURSOR_KEYSET );
    $result = sqlsrv_query( $conn, $sql, $params);
	$rowsAffected = sqlsrv_rows_affected ($result);
	

	if ($rowsAffected === false){
		 $error = true;     
	}
	
}

if (isset($_POST['submit'])){
    $sql1 = $_POST['query'];
}
else
{
    $sql = "SELECT * FROM PharmaceuticalCompany";
}
$params = array();
$options =  array( "Scrollable" => SQLSRV_CURSOR_KEYSET );
$stmt = sqlsrv_query( $conn, $sql , $params, $options );
?>

<? include 'html_head.php'; ?>

    <? include 'header.php'; ?>

    <div class="container-fluid">
      <div class="row-fluid">
        <div class="span2">
            <? include 'sidebar.php'; ?>
        </div><!--/span-->
        <div class="span9">
        <h2>PharmaceuticalCompany</h2>	
	    <hr>
        <? 
		if(isset($_GET['delete'])){
			if ($error){ ?>
				<div class="alert alert-error">
					<? echo "Error in deleting. Foreign Key constraint violated.<br />";?>
				</div>
				
			<? $error = false;
			} 
			else { ?>
				<div class="alert alert-success">
				<? echo "Data deleted successfully."?>
				</div>
				
			<?
			} 
		}?>
		<?
			if(isset($_POST['Insert'])){
				$msg = "";
				if($numeric == false){ 
					$msg = "Phone number's text field must be an integer value <br />";
				}
				if($validation_error){
					$msg = $msg . "No text fields can be empty";
				}
				if(isset($error_insert) && $error_insert){
					$msg = "Data cannot be inserted, foreign key constraints or triggers violated <br />";
				}
				
				if ($msg <> ""){ ?>
					<div class="alert alert-error">
						<? echo $msg; ?>
					</div>
				<?
				}else { ?>
					<div class="alert alert-success">
					<? echo $confirm;?>
					</div>
					
				<?
				} 
			}?>
			
			<?
			if(isset($_POST['Update'])){
				$msg = "";
				if($numeric_1 == false){ 
					$msg = "Phone number text field must be an integer value <br />";
				}
				if($validation_error_1){
					$msg = $msg . "No text fields can be empty";
				}
				if(isset($error_update) && $error_update){
					$msg = "Data cannot be updated, foreign key constraints or triggers violated <br />";
				}
				
				if ($msg <> ""){ ?>
					<div class="alert alert-error">
						<? echo $msg; ?>
					</div>
				<?
				}else { ?>
					<div class="alert alert-success">
					<? echo $confirm;?>
					</div>
					
				<?
				} 
			}?>
			
        <?
        
		if(sqlsrv_has_rows($stmt))
		{		
			$row_count = sqlsrv_num_rows($stmt);
            $colnames = sqlsrv_field_metadata($stmt)
		?>
		
		<table class="table table-striped table table-condensed">
		
		<thead>
			<tr>
			  <?
                    echo "<th>Company Name</th>";
					echo "<th>Address</th>";
					echo "<th>Phone Number</th>";
                ?>
			</tr>	
			</thead>
		<tbody>
		<?
			while( $row = sqlsrv_fetch_array( $stmt, SQLSRV_FETCH_ASSOC)){
        ?>
			<tr>
				<?
					echo "<td>" . $row['companyName'] . "</td>";
					echo "<td>" . $row['address'] . "</td>";
					echo "<td>" . $row['phoneNum'] . "</td>";
					echo "<td>";
					
					$companyName = urlencode($row['companyName']);
					echo "<td><a href='pharmaceutical.php?delete=true&companyName=" . $companyName . "'>Delete</a></td>";
					echo "<td><a href='pharmaceutical.php?update=true&companyName=" . $companyName . "#updates'>Update</a></td>";
				
				?>
			</tr>
		  
		<?
			}
		?>
		</tbody>
		</table>
		<?
		}
		else{
			echo "<h2>No records.</h2>";
		}
		?>
          <div class="row-fluid">
            <div class="span12">
			<!-- Update, appears only if update or update_error is set -->
            <? if (isset($_GET['update'])  || isset($update_error)){ ?>
            <div>
                <a name="updates"></a><h3>Update PharmaceuticalCompany information:</h3> 
                   <form method="post" action="pharmaceutical.php" class="well form-horizontal">
                    <input type="hidden" name="companyNameOld" value="<? echo $updateCompanyName ?>" />
                     <div class="control-group">
                        <label class="control-label">Company Name</label>
                        <div class="controls">
                        <input type="text" name="companyName" id="companyName" value="<? echo $updateCompanyName; ?>" />
                        </div> 
                    </div>
                    <div class="control-group">
                        <label class="control-label">Address</label>
                        <div class="controls">
                            <input type="text" name="address" id="address" value="<? echo $updateAddress; ?>"/>
                        </div>
                    </div>
                    <div class="control-group">
                        <label class="control-label">Phone Number</label>
                        <div class="controls">
                            <input type="text" name="phoneNum" id="phoneNum" value="<? echo $updatePhoneNum; ?>"/>
                        </div>
                    </div>
                    <div class="form-actions">
                        <input type="submit" name="Update" value="Update"  class="btn btn-primary"/>
                    </div> 
                    </form>   
            </div>
            <? } ?>
            <h3>Create a new PharmaceuticalCompany information:</h3> 
                    <form method="post" action="pharmaceutical.php" class="well form-horizontal">
                    <div class="control-group">
                        <label class="control-label">Company Name</label>
                        <div class="controls">
                            <input type="text" name="companyName" id="companyName" placeholder="eg. Alibaba Medical Centre" />
                        </div>
                    </div>
                    <div class="control-group">
                        <label class="control-label">Address</label>
                        <div class="controls">
                            <input type="text" name="address" id="address" placeholder="eg. #07-01 THE STRATEGY, TOWER ONE, 2 International Business Park, Singapore 609930" />
                        </div> 
                    </div>
                    <div class="control-group">
                        <label class="control-label">Phone Number</label>
                        <div class="controls">
                            <input type="text" name="phoneNum" id="phoneNum" placeholder="eg. 61234567" />
                        </div>
                    </div>
                    <div class="form-actions">
                        <input type="submit" name="Insert" value="Insert"  class="btn btn-primary"/>
                    </div> 
                    </form>
              <h3>Enter your query:</h3>
                    <form method="post" action="custom.php" class="well form-inline">
                    <div class="control-group">
                        <div class="controls">
                            <textarea name="query" class="span10" id="textarea" rows="5" placeholder = 'SQL query'></textarea>
                        </div>
                    </div>
                    <p>
                    <p><input type="submit" name="submit" class="btn btn-primary" href="#" /></p>
                    </form>
                    
            </div><!--/span-->
          </div><!--/row-->
        </div><!--/span-->
      </div><!--/row-->

      <hr>

      <footer>
        <p>&copy; SS2 GROUP 6 </p>
      </footer>

    </div><!--/.fluid-container-->
  </body>
</html>